Rail-joint lock.



J. W. CAMERON.

RAIL JOINT LOCK.

APPLICATION FILED mums, 191s.

Patented Nov. 3, 191;

2 SHBETSSHEET 1.

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J. W. CAMERON.

RAIL JOINT LOCK.

APPLICATION 11.21) B11023. 1013.

1,1 1 6,239. Patented Nov. 3, 1914.

2 SHBETSSHEET 2.

0 9 i 4 47/ wmw TE ST E JOHN W. CAMERON, OF CHICAGO, ILLINOIS.

RAIL-JOINT LOCK.

- and use the same.

This invention relates to rail joints and one of the principal objects of the same being to provide means for joining the meeting ends of railway rails and to permit of a certain amount of expansion and contraction and at the same time to hold the meeting ends against displacement.

Another object of the invention is to provide a rail joint or lock which will hold the meeting ends of the rails together and preventing the pounding of the rolling stock as the cars pass over the joints.

Still another object of the invention is to provide a rail joint which will prevent the spreading or sinking of the rails at the joint.

These and other objects may be attained by means of the construction illustrated in the accompanying drawings, in which,

Figure 1 is a top plan view of a rail joint and lock made in accordance with this invention, Fig. 2 is a side elevation and partial section of the same, Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2 looking in the direction of the arrow, Fig. 4 is a horizontal sectional view taken on the line 4-4: of Fig.3, Fig. 5 is a detail perspective view of the rail and lock, the base flange of which is shown broken away and in section, and Fig. 6 is a perspective view looking at the under side of the end of one of the rails.

Referring to the drawings the numerals 1 designate the railway rails and at their meeting ends these rails are each provided with a plain flat side 2 forming a continuation of the web 3 of the rail, and as shown in Figs. 3 and 4t somewhat enlarged. It is to be noted that both ends of the rails are exact duplicates.

Formed in the base flange 4 of the rail at the end thereof is a transverse recess 5 and a vertical slot .6 extending from the tread surface through the enlarged portions 2 and through the base flange 4 of the rail. The

Specification of Letters Patent.

Patented Nov. 3, 1914.

Application filed December 23, 1913. SerialNo. 808,309.

rail splice or lock comprises a base portion 7 having upturned flanges 8 at the opposite sides thereof, which extend along the outer edges of the base flanges 4i of the rail. The base portion 7 is made of suflicicnt length to rest upon three ties with the joint of the rails located centrally upon one of said ties as shown more clearly in Figs. 1 and i2. Projecting centrally from the base portion T is the splicing member 9 provided with rounded ends 10, said splicing member being adapted to fit within the slot 6 in the ends of the rails and to permit a slight movement of the rail ends to compensate for the expansion and contraction of the rails.

I As shown in Fig. 4 at 11 there is a space between the end of the splicing member 9 and the recess 6 and this space is to permit the rails to expand or contract by the effect of heat or cold. Extending across the base portion 7 are rectangular ribs or projections 12, one of which is fitted in each of the recesses 5 in the base flanges 4 of the rail ends. It is to be noted that the recesses 5 jeetions 12, the purpose being to permit a certain amount of play for expansion and contraction.

The manner of assembling the parts of the joint and lock may be briefly described as follows: The base flange of the splicing member may be placed upon the three ties with the member 9 disposed above the central tie of the three and the rails may be seated vertically and connected to the splicing member in an obvious manner.

From the foregoing it will be obvious that my rail joint and lock will hold the rails against spreading or sinking and will prevent the pounding of the rolling stock as it passes over the joint for the reason that the splicing member 9 extends flush with the tread surface of the rails and that the wheels in passing over the joint will first pass over the rounded end of the member 9 and will not pound at the meeting ends of the rails.

lVhat is claimed is A rail splice and lock comprisingrails each having a vertical slot at the end thereof, said slot extending through the head, web, and base flanges of the rails, and recesses extending across the under side of the base flanges of said rails, and a splice and lock member comprising a base having are somewhat wider than the ribs or pro- In testimony whereof I afiiX my signature 1n presence of two Witnesses.

JOHN W. CAMERON.

transverse ribs adapted to engage said recesses and a vertical portion seated in the 1 slots in the ends of the rails, said slots and recesses being somewhat greater in area than the transverse ribs and splicing Inemher to permit expansion and contraction. of the rails.

Witnesses:

HARVEY D. CAMERON, lVIAGDALnNE BUTGI-IER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). U. 

